Pulley



No. 609.976. I Patented Aug. 30, I898.

A. SCHIMINSKY.

'PULLEY.

(Application filed Mar. 16, 1898.)

(No Model.)

" H I. Q) 60am,- 94 W7 NlTED STATES ADOLF SOI-IIMIN SKY,-OF CLEVELAND,OHIO.

PU LLOEY.

SPECIFICATION forming part of Letters Patent No. 609,976, dated August30, 1898.

Application filed March 16, 1898. Serial No. 674,049. (No model.)

To all whom it may concern.-

Be it known that I, ADOLF SCHIMINSKY, a citizen of the UnitedStates,residin g at Cleveland, in the county of Ouyahoga and State ofOhio, have invented a certain new and use ful Improvement in Pulleys, ofwhich the following is a full, clear, and exact description, referencebeing had to the accompanying drawings.

My invention relates to a pulley, and is particularly concerned withpulleys havinga facing of strips of leather or similar material set onedge, as shown in Patent No. 332,998, granted to O. Copeland December22, 1885, and now owned by me.

One of the objects of the invention is to provide for holding theleather strips in place by means which shall be very simple, neat, and

efflcient,'and being adapted to be made of sheet metal may be verycheap.

Another object is to provide simple andefficient means for holding theabutting edges of halved pulleys in place.

The invention consists of the construction and combinations of partshereinafter described, and definitely specified in the claims.

The drawings clearly illustrate my invention.

Figure 1 is a side elevation of a pulley embodying the same. Fig. 2 isan elevation of one-half of the pulley, looking at the inner sidethereof. Fig. 3 is a view of the interlocking members for holding themeeting edges of the pulley-center in place at the periphery, lookingfrom the point 3 in Fig. 1 in the direction of the arrow. Fig. 4 is acentral section of the interlocking members for holding the rim inplace; and Fig. 5 is a'face view of such members,looking in a directionat right angles to Fig. 4:.

Referring to the parts by letters, A represents thepulley-center,composed of ahub portion a, the spokes a, and theperipheral rib (IF-and the flanges a on opposite sidesof the spokes.'This center in small cases may be made solid, though the larger pulleysare preferably made in two halves, as shown in the drawings, whicharesecured together by bolts B passing through the hub.

In the form shown in Figs. 1 and 2 a sheetmetal rim 0 surrounds the riba and the flanges a This rim is secured by rivets passing through theflanges a, while the peripheral rib a prevents the distortion of thepulleather to allow its insertion.

ley when the rim is riveted on. Thus the pulley is at the same time veryrigid and very light. The rim 0 has its peripheral edges turned outwardand backward, so as to form a roll of substantially U shape incross-section, as shown at 0. Intermediate of the curved rolls areperipheral dovetailed pieces d, which become rings when the halves ofthe pulley are joined. These pieces are preferably made of sheet metaland are held in place by the same rivets or bolts E which hold the rimto the flanges'of the pulley-center.

L represents the leather strips. These are held in place by thedovetailed pieces or rings taking into similarly-shaped grooves in thestrips and by the rolled edges of the rim, which, as shown, receive thecurved projecting ends Z of the strips. When the pulley is made inhalves, these strips are inserted from the open edge at the diametricalplane and are shoved around into place. When the pulley is made solid,the outwardly-extending portion of the pieces d may be cut away for adistance equal to the thickness of a strip of The rolling up of theedges of the rim, as shown, allows me to hold the leather strips inplace without the necessity of bolting on additional dovetailed piecesat the outer edges of the pulley, which are not only unsightly, butdiminish the effective width of the pulley-face. Moreover, it allows meto use a pulley having a sheetmetal rim, as shown in Fig. 2, which maybe 'both for the'pulley-center and for the sheetmetal rim. Those for thepulley-center are preferably made integral, the one with a spoke and theotherwith the rib a and this center is divided along the sideof a spoke,as shown.

The interlocking member, which is a portion of the spoke, is indicatedby J and consists of a plate or flange having two projecting lips j, andthe member for the other half of the pulley, which, as stated, ispreferably part of the rib a is a plate K, having a projection or flange7a, which lies between the lips j and at its end carries a lip 76,projecting in the opposite direction to the lipsj. The result is thatthe lips j, bearing against the flange 7t, prevent the lateraldisplacement of the parts, while by those lips bearing against the plateK and by the lip 7c bearing against the plate J radial movement ineither direction is prevented between the plates. Bolts M and nuts mprevent the separation of the plates when the halves of the pulley arejoined.

The interlocking members for the sheetmetal rim are similar. One ofthese members consists of the strip or plate Gr, curved to fit thepulley and having at its end which is at the diametric edge of thehalf-pulley a flange g, projecting substantially radially inward, whichflange has lips g extending from its sides in the opposite direction tothe plate G and at substantially right angles to the flange g. The othermember of the lock consists of the plate F, adapted to be bolted to theother half of the pulley and having at its end the flange f, the end ofwhich terminates in the lip f, projecting in the opposite direction tothe plate F.

When the two members just described are in place, the flange f liesbetween the lips g, whereby lateral relative movement of the parts ofthe rim in a direction parallel with the axis of the pulleyis prevented,while the lip f lies against the edge of the flange g and preventsmovement of the strip G inward with respect to the strip F, and theedges of the lips g bear against the strip F and prevent movement in theopposite direction. Thus these two strips and the edges of the rim towhich they are secured are prevented from moving by each other in anydirection. A bolt H and not 7?. secure the two members together. The twointerlocking members are shown of such form that they may be easily madeof sheet metal; but, if desired, they may be malleable castings.

The sheet-metal rim is preferably divided at points which come over thecentral line of a spoke and its flange, and thus bolts or rivets fromthe rim to these flanges may be near the ends of the rim, which isdesirable.

From the description given herein and the drawings it will be seen thatby my improved construction a leather-faced pulley may be produced whichis very simple and cheap in construction and is extremely neat inappearance, there being no bolts or nuts or screws visible on the faceof the pulley or projecting at its sides.

Having described my invention, I claim- 1. In a pulley, in combination,a central body part having flanges at its periphery, a sheet-metal rimencircling said periphery and extending across the face of the pulleyand having integrally-rolled-up edges which curve outwardly andbackwardly so as to be of substantially U shape in cross section,

peripheral dovetailed pieces on the outer side of said sheet-metal rim,bolts or rivets extending from these pieces and through the sheetmetalrim into the flanges of the pulley-center, whereby the same bolts orrivets hold the dovetailed pieces to the rim and the rim to thepulley-center, and strips of material similar to leather lying radiallyaround the rim and bearing against the same and held in place by saidrolled edges and dovetailed pieces and supported substantiallythroughout their length by said rim and dovetailed pieces, substantiallyas described.

2. In a pulley, a center made in two parts and consisting of a hub a,spokes a, peripheral rib 0. connecting the ends of the spokes andlateral flanges a at the ends of the spokes, said center being dividedthrough its hub and through the periphery along the side of spokes,plates or flanges J rigid with those spokes at which such division ismade, plates K extending inward from the peripheral ribs at their freeends, bolts joining the plates J and K, in combination with asheet-metal rim outside the pulley-center and secured to the flanges6L3, substantially as described.

3. The combination, in a pulley made up of separate parts, ofinterlocking members secured to the meeting edges of such parts,

each of said members having a projection which extends over the othermember, said projections being substantially at right angles with eachother whereby one of said members prevents movement of the otherradially inward, and the other member pre- Vents movement of thefirst-mentioned member in a direction parallel with the pulleyaxis,substantially as described. 7

4:. The combination, in a pulley made of separate parts, of a lock forthe meeting edges thereof, composed of two members secured to the innerside of the pulley at its periphery at the meeting edges, each of saidmembers having flanges projecting substantially radially inward from thepulley-rim, one of said flanges having lips extending over the sides ofthe other flange, and the other of said flanges having a lip extendingover the inner end of the first flange, substantially as described.

5. A look for the meeting edges of a pulleyrim consisting of the twoplates F and G adapted to be secured to the pulley-rim, the flanges fand 9 extending from the ends of said plates at right angles, the lip fextending from the end of the flange f and adapted to come over the endof the flange g and the lips g extending from the sides of the flange gand adapted to project beyond the flange f and bear against the plate F,substantially as described.

In testimony whereof I hereunto affix my signature in the presence oftwo witnesses.

' ADOLF SCHIMINSKY.

Witnesses:

PHILIP E. KNOWLTON, ALBERT I-I. BATES.

